Mojtaba Shafiei

Postdoktor

(+47) 412 48 742
mojtaba.shafiei@nibio.no

Sted
Ås - Bygg O43

Besøksadresse
Oluf Thesens vei 43, 1433 Ås (Varelevering: Elizabeth Stephansens vei 21)

Biografi

En høyt kvalifisert forsker med over ti års erfaring fra ulike prosjekter – fra hydrologisk modellering til vannressursforvaltning – både innen forskning og konsulentvirksomhet.

Mine hovedinteresser og kompetanseområder er:

  • (Agro/øko) hydrologisk modellering og vannregnskap

  • Klimatilpasning og naturbaserte løsninger (NBS)

  • Tverrsektorielle (nexus) studier og utvikling av sammensatte indikatorer

  • Bærekraftsvurdering og Strategisk planlegging

  • Miljø- og samfunnsmessig konsekvensvurdering

Min interesse for bærekraft og koblingen mellom vitenskap, politikk og praksis driver meg også til å initiere og delta i kapasitetsbyggingsprogrammer og initiativer som bidrar positivt både på arbeidsplassen og i samfunnet for øvrig.

Ved NIBIO fokuserer forskningen min på å simulere samspillet mellom nedbørfelt og naturbaserte løsninger (NBS) ved bruk av SWAT+, samt å utvikle hydrologiske rammeverk for å optimalisere klimatilpasningstiltak i nasjonalt finansierte prosjekter og Horizon Europe-prosjekter.

 

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Sammendrag

Within the EU Horizon project OPTAIN (OPtimal strategies to reTAIN and re-use water and nutrients in small agricultural catchments across different soil-climatic regions in Europe, optain.eu) project, the effects of Natural/Small Water Retention Measures (NSWRMs) on water regime, soil erosion, and nutrient transport are evaluated at both catchment- and field scales for present and future climate conditions. The goal of this study was to assess the effectiveness of selected management-based NSWRMs on soil water retention using the field-scale SWAP soil hydrological model and to compare the results with those simulated by the catchment-scale SWAT+ model. Improved water retention and reduced surface and subsurface runoff are indicators of reduced nutrient and soil particle losses towards the surface and subsurface water bodies. The field-scale assessment was based on the adaptation of the two models to seven pilot sites across three European biogeographical regions and on combined NSWRM – projected climate scenario analyses. The SWAP model was calibrated for all the pilot fields with good or satisfactory results. The impact of four infield NSWRMs - reduced tillage, shifting to grassland, afforestation and drought tolerant crops - on the water balance elements was evaluated. The scenario results indicate that the effects of measures on soil water retention and other water balance elements have some regional pattern, but can be strongly dependent on local conditions (e.g. soil, crop, slope). According to the scenario results, for most of the cases the studied NSWRMs contributed to reducing evaporation, surface and subsurface runoff and percolation to deeper layers, which resulted in increased soil water retention or plant water uptake within the fields. The cross-validation of the field-scale SWAP and catchment-scale SWAT+ models was a challenging task and could only be performed for selected water balance elements (evaporation, transpiration and drainage outflow). Comparable results were obtained in most of the cases for the baseline scenario, but the differences between the soil water balance elements simulated by the two models increased when implementing the different measures.

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